Power system



FIG. 1 is a perspective view of a power system showing a first embodiment of my new design;

FIG. 2 is a front view of the first embodiment;

FIG. 3 is a rear view of the first embodiment;

FIG. 4 is a left side view of the first embodiment;

FIG. 5 is a right side view of the first embodiment;

FIG. 6 is a top view of the first embodiment;

FIG. 7 is a bottom view of the first embodiment;

FIG. 8 is a perspective view of a power system showing a second embodiment of my new design;

FIG. 9 is a front view of the second embodiment;

FIG. 10 is a rear view of the second embodiment;

FIG. 11 is a left side view of the second embodiment;

FIG. 12 is a right side view of the second embodiment;

FIG. 13 is a top view of the second embodiment; and,

FIG. 14 is a bottom view of the second embodiment.

The broken line portions of the power system in FIGS. 1-14 represent unclaimed portions of the claimed design and form no part thereof. 

CLAIM The ornamental design for a power system, as shown and described. 